The physical quality of life index is a special tool that helps people measure how happy and healthy they are in their life. This tool looks at a few different things to figure out a score that tells you how good your life is.
Imagine you have a toy box with lots of toys inside. Some of the toys you really like, and others you don't care about as much. The physical quality of life index works a bit like this toy box.
First, it looks at three important things called basic needs. These are like the toys that you really need in your toy box to be happy. These basic needs are things like having enough food to eat, a safe place to live, and good health. For example, if you are hungry and don't have enough to eat or if you are sick, you might not be as happy in your life. So, these basic needs are really important.
Next, the tool looks at some other things that are important too, like the toys you might enjoy playing with but aren't essential for you to be happy. These things are called secondary needs. They include stuff like access to education, clean air and water, and leisure activities. Having these things can make your life more fun and enjoyable.
Finally, the tool uses all of this information to create a score that tells you how good your life is. The higher the score, the happier and healthier your life is considered to be.
To sum it up, the physical quality of life index helps us to understand how happy and healthy our lives are by looking at basic and secondary needs, much like how we look at the toys in our toy box to figure out how much fun we're having.